Joi is a distinctive girls' name in United States, ranking #2203 in 2007 with 90 recorded births. The name reached its all-time peak in 2001 with 119 births ranking #1564. Since 1996, the popularity has increased by 18.4%. In 2007, approximately 1 in every 21,361 girls born was named Joi. FALLING Recent data shows the name is currently falling.